clone this car or not

If it's titled as a 67 put the 67 vin on the dash so you never have issues with the real po-po...

I'd leave the fender tag and laugh at the wannabe's scratching thier heads...tell them it's 1 of 1, or a factory error from a Monday hangover...scribble "Rock" somewhere on the bottom of the car. Have some fun some fun with it, it's just a car!